Alan Stern: Organics on Pluto and Fairy Castles on the Moon

On This Episode

The second half of our conversation with the head of the New Horizons mission, now just 40 months from its close encounter with Pluto. Alan reveals news about that distant world, along with discoveries about our own moon. Emily Lakdawalla takes us to yet another moon. Bill Nye goes to a meeting about NASA's new budget. Bruce Betts and Mat Kaplan share the night sky awe and a new space trivia contest.